WEBVTT Friday night... Southern stream low pressure system tracks from the central Appalachians northeastward to the mid-Atlantic coastline. This system is accompanied by a closed but progressive mid level low. During the evening hours clouds increase and thicken/lower. Precip expected to hold off until after midnight. Airmass above the surface will be warm enough to preclude snow, the question of precip- type then determined by the temps at the surface, whether it starts as rain or if some pockets of freezing rain are possible at the onset. At this time thinking that best shot at light freezing rain prior to daybreak Saturday will be across the far interior of MA including north central MA. However still cant rule out a brief period of freezing rain as far south as northern CT and NW RI. Will continue mention of freezing rain threat in the Hazardous Weather Outlook. Overnight lows ranging from the upper 20s to low 30s across interior SNE, mid to upper 30s closer to the shoreline. && .LONG TERM /SATURDAY THROUGH THURSDAY/... / Highlights... - Mainly rain Saturday - Saturday night, potential interior icing early Saturday morning - Windy Sunday, cold Sunday night into Monday - Potential wintry weather Monday night into Tuesday - Unseasonably cold conditions possible late next week / Discussion... Expecting a split mid level flow to become an amplified, but more unified, flow early next week. This should keep temperatures near to above normal through much of this period, with the exception of Sunday night, which should be well below normal behind an arctic front. Temperatures should be trending below normal late next week. Precipitation should arrive in fairly regular periods. At this moment, looking at Friday night into Saturday evening, and Monday evening into Tuesday evening. Cant rule out some showers ahead of an arctic front Sunday evening and night, but a much lower risk. Of these, expecting mainly rain Saturday, with perhaps some sleet or freezing rain to start Saturday night. Temperatures will be critical. It will not take a large change in surface temperatures to have a large impact on the outcome. Eventually, warmer air will be too deep, and all precipitation will transition to rain by Saturday afternoon. The greatest risk for sleet and freezing rain will be across the higher terrain of interior southern New England. A Winter Weather Advisory may be issued for this threat, once confidence becomes greater. Another round of wintry weather possible Monday evening into Tuesday morning. This one may also run the gamut of precipitation types, with snow more likely at the start Monday evening, before a transition to mainly rain by Tuesday afternoon. These details are not as certain, and will likely change over the next couple of days. Otherwise, high pressure expected to be sandwiched between these systems.